Question

The domain of the following relation: R: {(3, -3), (1, 6), (-5, -4), (-10, 6)} is
Answer
{-10, -5, 1, 3}
{-4, -3, 6}
No domain exists
{6}

Answer 1

The domain would be the set of the first values (x-values usually) from the relation's ordered pairs. We write them from smallest to greatest though, as in the answers.